Maybe it's just because you'd expect certain artists' styles to work better for different series, but yeah, most of these designs just don't scream Legends to me. The only girl that really appeals to me is Ishikawa's, and of course obviously it's the style which is influencing me. But I do like that rebellious, retro-50's look to her. Sensei's would be my second choice, but seriously, she'd be better suited as a Tomahawkman.EXE Net Op. more than anything. And Komaki's at least shows some originality.
But otherwise, Kaji's is just Meiru, Inafune's is a rejected Roll concept, Yoshikawa's is Legend Master Shin and Harp Note's secret lovechild (er, yeah, that's a little creepy...), Nakayama's belongs in Zero, Higurashi's in ZX, and Ito's is just...meh.
So yeah, as long as either Ishikawa or Sensei's version wins, we all win by getting a girl who will have a better shot at good dirty art eventually.